I Built 23 Security Tools That AI Agents Can Use

I was tired of switching between 10 browser tabs to audit a single domain — WHOIS here, SSL checker there, CVE database in another tab, VirusTotal in the next one. So I built 23 security tools as an MCP server. Now I just tell my AI agent: "audit example.com" and it does all of it in one response. Here's what I built, how you can use it, and what I learned along the way. Setup (2 minutes) Let me start with the setup because it's the simplest part. Add this to your MCP client config: { "mcpServers": { "contrast": { "command": "npx", "args": ["-y", "@anthropic-ai/mcp-remote", "https://api.contrastcyber.com/mcp/"] } } } Works with Claude Desktop, Cursor, Windsurf, Cline, VS Code — anything that speaks MCP. No API key. No signup. 100 requests/hour free. The 23 Tools Recon — "What's running on this domain?" Tool What it does domain_report Full security report — DNS, WHOIS, SSL, subdomains, risk score dns_lookup A, AAAA, MX, NS, TXT, CNAME, SOA records whois_lookup Registrar, creation date,